CVE-2015-2978 in yoyaku_v41
Summary
by MITRE
Webservice-DIC yoyaku_v41 allows remote attackers to bypass authentication and complete a conference-room reservation via unspecified vectors, as demonstrated by an "unintentional reservation."
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Analysis
by VulDB Data Team • 07/27/2017
The vulnerability identified as CVE-2015-2978 affects the Webservice-DIC yoyaku_v41 system, which is designed to manage conference room reservations through a web-based interface. This authentication bypass flaw represents a significant security weakness in the system's access control mechanisms, allowing unauthorized users to gain privileges typically restricted to legitimate administrators or authorized personnel. The vulnerability manifests through unspecified attack vectors that enable remote exploitation without requiring valid credentials or proper authentication mechanisms to be satisfied.
The technical nature of this flaw suggests a failure in the system's authentication validation process where the application does not properly verify user credentials or session tokens before granting access to reservation functions. This could stem from improper input validation, flawed session management, or missing authorization checks within the web service implementation. The vulnerability enables attackers to perform actions that should be restricted to authenticated users, specifically allowing them to complete conference room reservations without proper authorization. The term "unintentional reservation" indicates that the attacker can manipulate the system to create reservations that were not intended by legitimate users, potentially leading to resource misallocation or unauthorized access to meeting spaces.
From an operational impact perspective, this vulnerability creates serious risks for organizations relying on the system for meeting room management. Attackers could potentially reserve conference rooms for extended periods, block legitimate users from accessing meeting spaces, or create reservations at inappropriate times. The remote nature of the attack means that threat actors do not need physical access to the network or system, making the vulnerability particularly dangerous as it can be exploited from anywhere with internet connectivity. This type of vulnerability directly impacts business continuity and resource management, as unauthorized reservations could disrupt planned meetings and create scheduling conflicts that affect productivity.
The vulnerability aligns with CWE-287, which addresses improper authentication issues in software systems, and represents a classic example of how weak access control mechanisms can lead to privilege escalation and unauthorized system access. From an ATT&CK framework perspective, this vulnerability maps to techniques involving privilege escalation and initial access through unsecured web services. Organizations should implement immediate mitigations including strengthening authentication mechanisms, implementing proper input validation, and conducting thorough security testing of web services. The system should also be updated with proper authorization checks that verify user credentials before allowing any reservation actions to be processed, ensuring that only authenticated and authorized users can perform critical functions within the conference room reservation system.